The Grignan Castle dominates the backdrop of this beautiful provencal village. You'll see it all the way from the main road when you get to Grignan. It is built on top of the hill next to the old town, which was built for purposes of defense around the castle, protected by a medieval wall.
The castle is especially famous for one of its residents, the Marquise de Sevigne, who lived in Grignan in the late seventeenth century. Her letters, which were written to her daughter were published and are a prime example of the French literature of the period. There has been a fort here since the twelfth century and it was built on a hill.